Potato masher



FIG. 1 is a front perspective view of a potato masher showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevational view thereof, the opposite side being a mirror image;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a top plan view thereof; and

FIG. 6 is a bottom plan view; and 

The ornamental design for a potato masher, as shown and described. 